I have created a child theme and the website is showing up properly with the activated child theme. I made some changes in the child theme's php files for adding two controls in the child theme's Appearance --> Customize section which will add a button ("Download my cv" button) on the home page. To do this I have added two php files and made modifications in them, keeping the same folder structure as the parent theme. They are working perfectly locally but not on the server. Although in localhost I have made the changes directly on the parent theme files.

I also can see the child theme's style sheet is loading by view source but on making modification in the style sheet its not showing the changes. Whereas any modification in functions.php is working. Some help would be appreciated. Please check the screenshots. Thanks